Mitchell "M.A." Larson
Wiglaf fits this quote perfectly, because he went in before all of the geats and assisted Beowulf while everybody else ran away and didn't do anything.
Larson gives out the occasional tips to writers, or just general inspiration.
Harry Potter's scar on his forehead is a sign of his eventual battle with Voldemort, fate. Beowulf heard of the threat of Grendal, and traveled to defeat him, and got locked into a fate to fight more.
Beowulf challenged the monsters without fear, showing extraordinary bravery, and Harry Potter, despite being faced with difficult and intimidating situations, he faced them eventually, showing his bravery.